There are 3 kinds of CNC machines can cut aluminum:1. CNC router2.CNC plasma cutting machine 3. CNC fiber laser cutting machine. CNC router can engrave and cut aluminum but speed is lower and precision is just so so. Plasma cutting machine can cut thick metal,but the precision is not good. Now,more and more people choose fiber laser cutting machine to cut aluminum because it can give you much better edge and faster cutting speed., XDLASER